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Author Topic: [1500 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool  (Read 2029006 times)
tucenaber
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July 13, 2012, 04:14:59 PM
 #2961

Looks like these are the options we have:
1. recalculate the merkle root each time p2pool is going to send work to the miner
  • this will increase CPU load
  • the miner can roll the time
This is incorrect. We don't have to recalculate merkle-roots at every request. We only have to calculate once for each miner each time we get new work, compared to once for all miners as it is now.

For those that have only one miner connected there will be no difference.
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mdude77
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July 14, 2012, 12:00:28 AM
 #2962

I don't understand. If p2pool can roll the time locally fast enough, there should be no need to tell the mining software to roll the time at all. Alternatively, if you let the mining software roll the time, why should p2pool roll time at all? There's some kind of catch 22 thing going on here, and yet it should be very low overhead to roll the time. Something is missing in this equation. The mining software should report if it supports nrolltime in X-Mining-Extensions: "longpoll midstate rollntime submitold". If it supports rollntime then p2pool should not be rolling the time itself and allow the miner to do it by advertising X-Roll-Ntime (potentially with some expire= but just "Y" should suffice here). If it does not support rollntime, then p2pool should roll the time itself and not advertise X-Roll-Ntime.
Looks like killing rolltime line is best option if using cgminer then Smiley

I did that and it drove cgminer nuts.  It complained non stop about the p2pool not supplying work fast enough and directed all the work to my backup pools.

Anyhow, I fixed mine.  I directed all my workers to ozcoin again.  Experiment is over (a week), things haven't changed, I still do better on 5% PPS on ozcoin than I do on p2pool.

M

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rav3n_pl
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July 14, 2012, 06:33:47 AM
 #2963

P2pool software is updated, xrolll changed to 120 seconds and some other stuff. It should prevent all this dupe madness (unless you have over 35GH on one miner....).

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July 14, 2012, 12:44:16 PM
 #2964

We're still disagreeing about what the "expire=" means. cgminer can roll up to 7000 seconds into the future, but will only work on rolled work for $expire seconds before discarding it.

Primary developer/maintainer for cgminer and ckpool/ckproxy.
Pooled mine at kano.is, solo mine at solo.ckpool.org
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RandomQ
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July 14, 2012, 08:44:01 PM
 #2965

so I was looking at /pings I think this is ping time to other p2pool servers
IE "108.175.12.32:9333": 271.435022354126,

and /user_stales i think is a percent of stales?
IE "1GREEN1Q1iGnonZ5yBdFbxifYdwhbzNU1m": 0.056818181818181816

Any Ideas?

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rav3n_pl
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July 14, 2012, 10:53:19 PM
 #2966

UR correct.
Looks like I`m connected to very few European nodes, only 2-3 addresses under 100ms, on both LTC and BTC pool.

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kano
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July 15, 2012, 01:02:33 AM
 #2967

... and if you look at the cgminer API 'stats' command it will tell you the network performance figures for each pool so you can compare them that way for active pools.
However, the actual non 'Pool' stats in there are really all that matter since as long as cgminer is getting work before it is needed that's all that matters.

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RandomQ
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July 15, 2012, 01:37:12 AM
 #2968

p2pool official birthday?

June 17, 2011?

 mid-July, 2011?

July 26, 2011?


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mdude77
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July 15, 2012, 11:13:25 AM
 #2969

P2pool software is updated, xrolll changed to 120 seconds and some other stuff. It should prevent all this dupe madness (unless you have over 35GH on one miner....).

I put one miner back on p2pool.  I double checked my math and p2pool is pretty close to ozcoin.

I also changed my xroll to 120, and I'm still getting a lot of dupes. Sad

when you say "p2pool software is updated", what do you mean?  I still show the official version as 3.1

M

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sharky112065
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July 15, 2012, 12:40:24 PM
 #2970

P2pool software is updated, xrolll changed to 120 seconds and some other stuff. It should prevent all this dupe madness (unless you have over 35GH on one miner....).

I put one miner back on p2pool.  I double checked my math and p2pool is pretty close to ozcoin.

I also changed my xroll to 120, and I'm still getting a lot of dupes. Sad

when you say "p2pool software is updated", what do you mean?  I still show the official version as 3.1

M

If your version does not show "3.1-33-g246efaa-dirty" you are probably not using the latest version available (git; https://github.com/forrestv/p2pool/commits/master").

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rav3n_pl
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July 15, 2012, 12:43:34 PM
 #2971

3.1 form 1st post is constantly updated.
If ur on windows try latest source from git and run it from source on python.
Just copy data directory to keep history and payout address.

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mdude77
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July 15, 2012, 06:19:34 PM
 #2972

3.1 form 1st post is constantly updated.
If ur on windows try latest source from git and run it from source on python.
Just copy data directory to keep history and payout address.

I pulled in the latest version and I'm no longer getting dupe share messages!!  Not sure what else you changed... as I changed my local source timeout to 120 and it didn't fix it.

M

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RandomQ
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July 15, 2012, 11:05:26 PM
 #2973

I know we have the sendmany command to send donations to all p2pool miners.

Is there a command to sendlocal where any miners on your sub pool would be sent a donation?

I really want to sent BTC generated from alt coins to the Miners that help generate them.

I guess I could grep "GOT SHARE" to have a list of the recent shares and figure how to dividend up the payments but a command would be so nice


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Subo1977
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July 16, 2012, 07:52:31 AM
 #2974

Hi.

I got 2 payouts from p2pool in the Last 24 h.
In the Staats Page are 0 Blocks found in the Last 24 hours.
This Happens a few in the Last days

Is this a Bug?

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racerguy
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July 16, 2012, 11:40:27 AM
 #2975

is there a way to make bitcoin p2pool serve out variable diff shares in the same way as litecoin p2pool does?
rav3n_pl
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July 16, 2012, 12:03:15 PM
 #2976

Hi.

I got 2 payouts from p2pool in the Last 24 h.
In the Staats Page are 0 Blocks found in the Last 24 hours.
This Happens a few in the Last days

Is this a Bug?
Code:
Blocks found in last day:

Note that blocks may have been orphaned from the P2Pool chain and so not be here.
See http://p2pool.info/ for real block found count Smiley

1Rav3nkMayCijuhzcYemMiPYsvcaiwHni  Bitcoin stuff on my OneDrive
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freshzive
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July 16, 2012, 05:58:35 PM
 #2977

Hi.

I got 2 payouts from p2pool in the Last 24 h.
In the Staats Page are 0 Blocks found in the Last 24 hours.
This Happens a few in the Last days

Is this a Bug?
Code:
Blocks found in last day:

Note that blocks may have been orphaned from the P2Pool chain and so not be here.
See http://p2pool.info/ for real block found count Smiley

But these aren't orphaned, they are real blocks that have paid out. I've noticed this too, mine is currently showing 0 even though it should show 1. The other day when we had 4 or 5 in the past 24 hours, it only showed 2 or 3. Seems like a bug.

ancow
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July 16, 2012, 06:34:33 PM
 #2978

Hi.

I got 2 payouts from p2pool in the Last 24 h.
In the Staats Page are 0 Blocks found in the Last 24 hours.
This Happens a few in the Last days

Is this a Bug?
Code:
Blocks found in last day:

Note that blocks may have been orphaned from the P2Pool chain and so not be here.
See http://p2pool.info/ for real block found count Smiley

But these aren't orphaned, they are real blocks that have paid out. I've noticed this too, mine is currently showing 0 even though it should show 1. The other day when we had 4 or 5 in the past 24 hours, it only showed 2 or 3. Seems like a bug.

Just because they aren't orphaned from the bitcoin blockchain doesn't mean they aren't orphaned from the p2pool sharechain. I can happen that a share is orphaned from the sharechain but still a valid block and therefore sent out to bitcoind.

Better a slightly incorrect statistic than losing money to keep the statistics nice and neat, right? Wink

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RandomQ
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July 16, 2012, 06:55:04 PM
 #2979

is there a way to make bitcoin p2pool serve out variable diff shares in the same way as litecoin p2pool does?

https://en.bitcoin.it/wiki/P2Pool

Appending "/1000" to a miner's username will increase the difficulty of producing a P2Pool share to at most 1000. This is useful to large miners because doing this can make it easier for small miners while minimally impacting the large miners themselves. See recommended values.
Appending "+1" (for example) after that will make P2Pool always give your miners work with a difficulty of 1

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freshzive
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July 16, 2012, 08:07:01 PM
 #2980

Just because they aren't orphaned from the bitcoin blockchain doesn't mean they aren't orphaned from the p2pool sharechain. I can happen that a share is orphaned from the sharechain but still a valid block and therefore sent out to bitcoind.

Better a slightly incorrect statistic than losing money to keep the statistics nice and neat, right? Wink

Sorry, I didn't realize there was a difference. Your point is valid. Still, why are such a high percentage of solved blocks being orphaned from the p2p share chain? The one we just solved appears to have been orphaned as well.

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